Nady Systems MPA-400 owner manual Specifications, Service

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SPECIFICATIONS

Audio Power Output:

40W maximum, 6 Ohms

Internal Battery:

Built-In 12V/3.3A (Rechargeable Battery)

External Power:

12VDC 3A DC Supply

Built-In Charger:

100~240VAC/50~60Hz

AC Power consumption:

40 VA

Dimension:

7” x 9” x 11.5” (178 x 229 x 292mm) and

Weight:

12.4 lbs. (5.63 Kg.)

Input Sensitivity

52dB +/-2dB

Frequency Response:

150-15KHz +/-3dB

T.H.D.:

1% @400Hz

Inputs:

Wireless Mic, Hardwired Mic Inputs

Tone Control Range:

Hi: +/-6dB at 10KHz

Wireless Operating

Low: +/-6dB at 100Hz

170-216MHz, FM (3E)

Frequency Range:

Battery/Hours

9V/ 8Hours

Wireless Operating Distance: 100 ft. typical, up to 200 ft. line of sight

SERVICE

(U.S.) Should your Nady MPA-400 require service, please contact the Nady Service Department via phone at (510) 652-2411 or e-mail at service@nady.com for a Return Authorization (R/A) number and a service quote (if out of warranty). Make sure the (R/A) number is clearly marked on the outside of the package, cashier’s check or money order is enclosed (if not prepaid with a credit card), Include a brief description of the problems you are having and ship the unit prepaid to:

Nady Systems Inc.

Service Department,

6701 Shellmound Street

Emeryville, CA 94608

(International) For service, please contact the Nady distributor in your country through the dealer from whom you purchased this product.

DO NOT ATTEMPT TO SERVICE THIS UNIT YOURSELF AS IT CAN BE DANGEROUS AND ALSO VOID THE WARRANTY

One Year Limited Warranty

Nady Systems, Inc. warrants to the original consumer purchaser that the unit is free from any defects in material or workmanship for a period of one year from the date of original retail purchase. If any such defect is discovered within the warranty period, Nady Systems, Inc. will repair or replace the unit free of charge, subject to verification of the defect or malfunction upon return to Nady Systems. Please do not return your Nady product to the store where it was purchased as Nady Systems handles your warranty service directly. Communication with our Service Department is the most efficient means of servicing your unit and we are dedicated to keeping you a satisfied customer.

To the extent permitted by law, any applicable implied warranties, including warranties of merchantability and fitness are hereby limited to one year from the date of purchase. Consequential or incidental damages resulting from a breach of any applicable express or implied warranties are hereby excluded. This warranty is in lieu of all other agreements and warranties, general or special, express or implied and no representative or person including a Nady dealer, agent, or employee is authorized to assume for us any other liability in connection with the sale or use of this Nady Systems’ product.

Whereas some states do not allow limitations on how long implied warranties last, and do not allow exclusion of incidental or consequential damages, the above limitations and exclusions may not apply to you. This warranty gives you specific legal rights and you may also have other rights which may vary from state to state.

This warranty is subject to the following conditions:

1)This system must have been purchased from an authorized Nady dealer and all warranty service must be performed by Nady’s service department. Any service not performed by Nady will automatically void this warranty.

2)Items not covered: physical damage resulting from improper handling of the unit in transit from the factory by the shipper (Nady Systems is not responsible for such damage and all such claims must be made against the shipping company by the consignee); defects caused by normal wear of the product (expendable parts are typically connectors, cables, potentiometers, switches and similar components); damage or defects caused by abuse, neglect, accident, failure to connect or operate the unit in any way that does not comply with applicable technical or safety regulations, or improper repair, excessive heat or humidity, alteration or unreasonable use of the unit, causing cracks, broken cases/housings or parts; damage caused by leaking batteries; finish or appearance items; items damaged in shipment en route to Nady Systems, Inc. for repair. The warranty is null and void if any Nady serial number has been removed or defaced.

How To Obtain Service:

1)If factory service is required, you must contact our Service Department at (510) 652-2411 for a return authorization (RA) number. Make sure the RA number is clearly marked on the outside of your package. (Please note: if an RA number is not included, our shipping department cannot accept your package.)

2)Send the unit back to Nady Systems, 6701 Shellmound Street, Emeryville, CA, 94608 freight

prepaid. You must include proof of date and place of purchase (i.e., photocopy of your bill of sale) and a brief description of the unit’s problem(s) or Nady cannot be responsible for repair or replacement. Nady Systems, Inc. will not repair, nor be held responsible, for any units returned without proper identification, return address, and RA number clearly marked on the package.

3)Per the above, Nady will perform all warranty service and return the unit to you at no charge. Nady Systems will inform the buyer if product sent in does not meet the terms of this warranty and will provide a quote for fixing the unit and/or shipping it back exclusively at the buyer’s expense.

Consumer Alert

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50mW); and it has no protection from interference received from any other device. Purchasers should also be aware that the

FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change.

For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit www.fcc.gov/cgb/consumerfacts/wirelessmic_factsheet.html.

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Contents MPA-400 Contents System FeaturesControls and Connections WHT Handheld Microphone TransmitterPowering the MPA-400 Wired OperationWireless Operation Stand Mounting the MPA-400 Specifications ServiceConsumer Alert

MPA-400 specifications

The Nady Systems MPA-400 is a versatile and powerful multi-channel amplifier designed for a wide range of applications in both live sound and installation scenarios. With its robust construction and innovative technology, the MPA-400 meets the demands of professional users seeking reliable performance and audio quality.

One of the standout features of the MPA-400 is its four-channel design, allowing it to drive multiple speaker systems simultaneously. Each channel is independently adjustable, which provides users with the flexibility to tailor the output to suit various speakers and acoustic environments. The amplifier delivers a total output power of 400 watts, ensuring ample headroom for dynamic performances and events.

The MPA-400 incorporates advanced cooling technology, including internal fans that maintain optimal operating temperatures. This feature not only extends the lifespan of the unit but also ensures consistent performance during extended use. The weighted internal components are designed to minimize noise interference, contributing to the unit’s clean and clear audio output.

In terms of connectivity, the MPA-400 offers a comprehensive array of options. It includes balanced XLR inputs for professional-grade microphones and instruments, as well as RCA inputs for connecting consumer audio devices. The outputs provide compatibility with a range of speaker configurations, making it suitable for both passive and active monitoring systems.

The amplifier is engineered with a built-in limiter, which prevents peak overload while maintaining signal integrity. This safeguard is especially beneficial in live sound applications, where sudden volume spikes can lead to distortion or speaker damage. Additionally, the unit features LED indicators for signal presence and clipping, allowing users to monitor performance at a glance.

Portability is another significant advantage of the MPA-400. Its compact chassis and lightweight design enable easy transportation, making it an ideal choice for mobile DJs, bands, and sound reinforcement professionals. The rugged construction ensures it can withstand the rigors of frequent travel and setup.

Overall, the Nady Systems MPA-400 stands out in the crowded field of audio amplifiers thanks to its power, flexibility, and reliability. Whether for live performances, recording sessions, or public address use, the MPA-400 provides an exceptional solution for elevating sound quality and delivering exceptional audio experiences. Its combination of features and technologies makes it a valuable asset for any audio professional.